How to space camel cased strings?

I'm learning how to use spritesheets and wanted to make a mini in-game explorer. I found a table which contains most services but without any spacing in the names. Is there any way to add spaces before every capital letter? Current code (Modified to be smaller):

local parenframe = script.Parent.Parent.Frame

-- //Create them

for i,v in pairs(ExplorerIndex) do
    local spacedName = -- Perform string manipulation
    if game[spacedName] then
        -- Create the label
    end
end